Whether it's Sunday night or some other period of time when staffing is at a minimum, digital signage networks should be ready to respond to emergencies with timely warnings.

Twice within the past four months, I have been out of town on business when my general locale came under a tornado warning -not a watch, but a warning- issued by the National Weather Service.

For those who don't live in parts of the country where tornados generally occur, the distinction between a watch and warning is the former indicates conditions are favorable to producing a tornado, while the latter means a tornado has been spotted on the ground.

The thing about a tornado warning in metro areas is that although sirens will wail to announce the danger, they don't dispense information about where the tornado is located, the track that it is following and other threats that often accompany tornados, such as the presence of damaging hail. In other words, you know there is danger, but you don't know if you're in the bull's eye or some outer ring on the tornado's target.

Radio and television broadcasters typically fill in the details by telling or showing the public timely information to help them respond appropriately. However, both recent occasions when I encountered a tornado warning happened on a Sunday night, a time when many radio stations are playing nationally syndicated programs or automated music playlists and many TV stations are working with a skeleton crew. On both occasions, all stations, save one, were slow to respond with their typically excellent presentation of weather warnings.

Having experienced firsthand a dearth of information in an emergency situation made me think of all the digital signage networks in use that may suffer from their own "Sunday night syndrome."

Please understand, I am using "Sunday night" as a metaphor for whatever day or stretch of time your organization is typically off-duty or understaffed. The day of the week or specific time isn't important, just the fact that your organization is at rest.

Are plans in place to communicate critical emergency information via your digital signage network in a timely fashion during those periods? Sure, most buildings on a college campus may be closed after midnight, but what about the anatomy lab or design studio where students have gathered at the only time they can to study? What about workers on the graveyard shift at the factory? Or for that matter, the drivers on the interstate like me who see "Click it or Ticket" roadside digital signage messages from the state, but not "tornado spotted five miles ahead"?

A few helpful questions for managers of digital signage networks to ask include:

1. During what periods is our organization at its weakest?
2. Do contingency plans exist for emergency communications at off times?
3. Have personnel been assigned responsibilities for emergency communications during down times?
4. Does the digital signage network allow for control from an off-site Web browser or other remote access to generate and distribute emergency messaging even when no one is present at the operations center?
5. Are security methods sufficient to prevent unauthorized remote access to the digital signage network?

While the primary purpose of digital signage networks varies depending on the application, each should share a common role during emergencies: distributing warnings and information that can save lives and minimize the risk of injury. Whether it's Sunday night or some other down time, digital signage network managers should be prepared to do just that.

A new forecast from IHS iSuppli projects stunning growth in some digital signage sectors for touch screen functionality.

A friend of mine recently upgraded his cell phone to an HTC EVO running the Android operating system and proudly was showing me how he accessed his contacts, apps and the Internet by touching the handsome screen on the mobile computer. Not to be outdone, I couldn't resist pulling my Apple iPhone from my pocket and demonstrating its big, bright screen with the same type of touchscreen interface.

My encounter with my friend points out just how commonplace touchscreen technology is becoming among consumers. According to a Wikipedia entry 6.4 million iPhones are active in the United States. Worldwide the number is 41 million as of February 2010. Ditto for Android phones with 400,000 being activated daily, according to Google, and a total of 100 million in use worldwide.

Add to these numbers the millions of consumers who have purchased an Apple iPad as well as the momentum growing among consumers for Motorola Xoom tablets and other such devices and one thing seems so apparent that I risk winning the "Captain Obvious" award for stating it: People love touchscreen interaction with their devices.

The same is true, it turns out, with digital signage. Perhaps fueled by their appetite to navigate around their phones and tablets with their fingertips, consumers will soon reach out and touch digital signage in record numbers.

A new research from IHS iSuppli, finds shipments for touchscreen displays for signage and the professional market will grow by a factor of seven over the next three years, reaching 2.97 million by 2013. Last year, shipments reached 404,999. The forecasted increase between 2009 and 2013 represents a 96.3 percent compounded annual growth rate, IHS iSuppli said.

The research firm forecasts the growth of touchscreen digital signage in several sectors including: public spaces, hospitality, healthcare, government, corporate retail, transportation and education.

By market segment, IHS iSuppli forecasts growth of:

• 41.8 percent in public spaces, hospitality and healthcare applications;
• 31.2 percent in the government and corporate sectors;
• 20.7 percent in retail use; and
• the remainder of the growth in transportation and education.

According to Sanju Khatri, who authored the posting on the IHS iSuppli website detailing the forecast, not all of the dozen or so technologies used to enable touchscreen functionality are appropriate for non-consumer displays 32 inches and larger. The most likely candidates to help enable the forecasted growth are optical imaging, resistive, projected capacitive, bending wave, infrared and surface acoustic wave (SAW).

All of this projected growth points to the need digital signage users will have for the talent to develop content that taps into consumer interest in touch screen technology. Managers responsible for digital signage content used by their organizations should begin planning now for exploiting the power of touchscreens to advance their communications goals.

Certainly, interactive touchscreen technology is not appropriate for all digital signage applications. However, in those sectors identified by IHS iSuppli for growth in touchscreen functionality digital signage messaging has the opportunity to grow equally in relevancy as viewers interact with signs in search of the information they need.